| 
    
        From the 
          
          Create section of the action bar, click  
           
          Circle
           
           .
        In the Circle type list, select Bitangent and
            radius.
      
        In the Element 1 and Element 2 boxes,
          select the two elements (point or curve) to which the circle is to be tangent.
      
        In the Support box, select a surface.
        
           Note:
			To project the circle onto the support plane or surface, click  . 
          
        In the Radius box, enter the radius value or use the arrows to
          change the value.
        
           Note:
			To switch to diameter, click  . As several solutions may be possible, click the region where you want the circle
          to be. Depending on the active Circle Limitations  icon, the
          corresponding circle or circular arc is displayed. For a circular arc, you can specify the
          trimmed or complementary arc using the two tangent points as end points.     
        Click  to trim the
          element.
        To specify the axis computation mode, select the Axis
            computation check box.
      
        To specify the center computation mode, select the Center
            computation check box.
      
        Click  to select the other
          circular arc that is suitable for current specifications.
        Click OK to create the circle or circular arc.
         The circle (identified as Circle.xxx
          ) is added to the tree.
 |